rs369399624
Variant summary
Our verdict is Likely benign. Variant got -4 ACMG points: 2P and 6B. PM2BP4_StrongBP6BP7
The NM_001164278.2(SLC37A4):c.492C>T(p.Ser164Ser) variant causes a synonymous change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000148 in 1,612,762 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Conflicting classifications of pathogenicity (no stars).
Frequency
Consequence
NM_001164278.2 synonymous
Scores
Clinical Significance
Conservation
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ACMG classification
Verdict is Likely_benign. Variant got -4 ACMG points.
Transcripts
RefSeq
Gene | Transcript | HGVSc | HGVSp | Effect | Exon rank | MANE | Protein | UniProt |
---|---|---|---|---|---|---|---|---|
SLC37A4 | NM_001164278.2 | c.492C>T | p.Ser164Ser | synonymous_variant | Exon 5 of 12 | NP_001157750.1 | ||
SLC37A4 | NM_001164277.2 | c.492C>T | p.Ser164Ser | synonymous_variant | Exon 5 of 11 | NP_001157749.1 | ||
SLC37A4 | NM_001164280.2 | c.492C>T | p.Ser164Ser | synonymous_variant | Exon 3 of 9 | NP_001157752.1 |
Ensembl
Frequencies
GnomAD3 genomes AF: 0.0000788 AC: 12AN: 152266Hom.: 0 Cov.: 33
GnomAD3 exomes AF: 0.0000689 AC: 17AN: 246696Hom.: 0 AF XY: 0.0000374 AC XY: 5AN XY: 133864
GnomAD4 exome AF: 0.000155 AC: 227AN: 1460496Hom.: 0 Cov.: 35 AF XY: 0.000153 AC XY: 111AN XY: 726438
GnomAD4 genome AF: 0.0000788 AC: 12AN: 152266Hom.: 0 Cov.: 33 AF XY: 0.0000538 AC XY: 4AN XY: 74396
ClinVar
Submissions by phenotype
Glycogen storage disease, type I Uncertain:1
This variant was observed in the ICSL laboratory as part of a predisposition screen in an ostensibly healthy population. It had not been previously curated by ICSL or reported in the Human Gene Mutation Database (HGMD: prior to June 1st, 2018), and was therefore a candidate for classification through an automated scoring system. Utilizing variant allele frequency, disease prevalence and penetrance estimates, and inheritance mode, an automated score was calculated to assess if this variant is too frequent to cause the disease. Based on the score, this variant could not be ruled out of causing disease and therefore its association with disease required further investigation. A literature search was performed for the gene, cDNA change, and amino acid change (if applicable). No publications were found based on this search. This variant was therefore classified as a variant of unknown significance for this disease. -
not specified Benign:1
Variant summary: SLC37A4 c.492C>T alters a conserved nucleotide resulting in a synonymous change. 4/4 computational tools predict no significant impact on normal splicing. However, these predictions have yet to be confirmed by functional studies. The variant allele was found at a frequency of 6.9e-05 in 246696 control chromosomes, predominantly at a frequency of 0.00013 within the Non-Finnish European subpopulation in the gnomAD database. This frequency is not significantly higher than expected for a pathogenic variant in SLC37A4 causing Glycogen Storage Disease Type Ib (6.9e-05 vs 0.0012), allowing no conclusion about variant significance. To our knowledge, no occurrence of c.492C>T in individuals affected with Glycogen Storage Disease Type Ib and no experimental evidence demonstrating its impact on protein function have been reported. Two clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar after 2014 without evidence for independent evaluation. One laboratory classified the variant as likely benign, and one laboratory classified the variant as uncertain significance. Based on the evidence outlined above, the variant was classified as likely benign. -
Glucose-6-phosphate transport defect Benign:1
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Inborn genetic diseases Benign:1
This alteration is classified as likely benign based on a combination of the following: seen in unaffected individuals, population frequency, intact protein function, lack of segregation with disease, co-occurrence, RNA analysis, in silico models, amino acid conservation, lack of disease association in case-control studies, and/or the mechanism of disease or impacted region is inconsistent with a known cause of pathogenicity. -
Glucose-6-phosphate transport defect;C0342749:Phosphate transport defect;C5561986:Congenital disorder of glycosylation, type IIw Benign:1
This variant has not been reported in the literature but is present in the Genome Aggregation Database (Highest reported MAF 0.01% (9/68046) (https://gnomad.broadinstitute.org/variant/11-119027762-G-A?dataset=gnomad_r3). This variant is present in ClinVar, with multiple labs classifying this variant as Likely benign (Variation ID:302706). Evolutionary conservation and computational predictive tools for this variant are limited or unavailable. Of note, this variant is a silent variant and does not change the amino acid, reducing the probability that this variant is disease causing. In summary, data on this variant suggests that this variant does not cause disease but requires further evidence. Therefore, this variant is classified as likely benign. -
not provided Benign:1
SLC37A4: BP4, BP7 -
Computational scores
Source:
Splicing
Find out detailed SpliceAI scores and Pangolin per-transcript scores at